Improvement in fountain-pens



r B. ADAMS Fountain-Pen. t No. 208,2l9. Patented Sept. 24, I878.

N. PETERS. PHorO-UTHOGMPHER. WASHINGTON. D. O,

UNITED STATES PATENT QFFIGE.

GEORGE B. ADAMS, OF NEWARK, NEW JERSEY.

IMPROVEMENT IN FOUNTAlN-PENS.

Specification forming part of Letters Patent No. 208,219, datedSeptember 24, 1878 application filed March 15, 1878.

To all whom it may concern:

Be it known that I, GEORGE E. ADAMS, of the city of Newark, in thecounty of Essex and State of New Jersey, have invented certainImprovements in Fountain-Pens, the nature of which improvements consistsin a force and suction arrangement for feeding the ink to the pen while111 use, and in preventing the ink from flowing when not in use; and Ihereby declare that the following is a full, clear, and exactdescription of the same, reference being hadto the annexed drawings,whichform a part of this specification, in which- Figure l is alongitudinal section, and Fig. 2 a transverse section, taken in the linew 00.

To enable those skilled in the art to which my invention relates thebetter to understand and construct the same, I will proceed to describeit more fully.

In Fig. 1, 0 represents a case, made of hard rubber or other suitablematerial, and fitted for holding ink, and, when filled, constitutes thefountain or ink-supply for the pen.

To the upper end of the case 0 there is fitted snugly a piece of metaltubing, 6, about an inch long, more or less, which tube 6 is as large inits outside diameter as the case 0 is in its inside diameter, and thesaid tube 6 is snugly forced into the case 0 to the distance an inch,more or less, in length, and wide enough to allow a pin to pass through,as

shown at P, Fig. 2.

Through the entire length of the case 0 there is a small rod, 0', on theupper end of which there is an eye, a. Just below the said eye a shortdistance there is secured a small collar, 0. Between the collar 0 andeye a there is secured to the rod r, by wiring or otherwise, as shown atw, a short piece of rubber tubing, (indicated by the heavy diverginglines o.) The lower end of the saidrubber tubingis stretched over aring, r, of inelastic substance, which ring is sufliciently large in itsoutside diam eter to snugly press the rubber to the inside of the case0.

When the rubber tubing has been secured to the rod 0*, the said rod,with the tubing and its ring 0", is passed into the case 0 at its lowerend, forced upward until the rubber tubing just above the ring 1" comesin contact with the inner metal tube, 0, as shown at m, and just beforethe eye it reaches the slots 8, and there the ring 0" and rubber tubeare held in. a fixed position, while the rod 0', with its eye a, isforced still upward until the said eye comes in line with the slots 8,when the pin P, shown in Fig. 2, is passed through and secures the wholein place.

Outside and covering that part of the tube 0 which extends above thecase 0 is a cap, 0, fitting loosely, and to which the pin 1? is se:curely fastened, the object of this cap 0 being to furnish a finger-hold for replenishing the pen with ink, as will be hereinafter morefully shown.

To the end of the case a there is fitted by threading, as shown at t, ashort piece of hardru-bber tube, 0, provided with a milled collar,

0'', to prevent leakage, as well as for finish 1 and convenience inscrewing it to and for re-.. plenishing the fountain.

Within the tube 6 is fitted air-tight a sec ondary tube, taperingdownward to a point, as shown at 1?. This tube is made of silver or anymaterial that will not corrode, and is in clined to one side, so as tocome nearly or quite in contact with the pen. This arrangement, by theincreased attraction occasioned thereby, enables the pen to hold moreink without dropping than it otherwise would do. Within this tube P therod 7', at its extreme lower end, fits as a valve or plunger, closingperfectly tight the small orifice in the tube P. WVhen the pen is to befilled for use the rod r is drawn back to the limit of the slots 8, thusadmitting air at the point of the tube 1?, and drawing it in by suctionoccasioned by elongating the rubber tube '0. In withdrawing the rod 1'when the cap 0 is released, the rubber tube n, acting as a spring,forces the rod 0' downward, carrying with and before it the necessaryamount of ink, and instantly closing the orifice in the point of thetube P, thus effectually preventin g. the flow of any more ink until theoperation of withdrawing the rod is again repeated. The point of the rodr is made of silver or platinum to prevent corrosion.

Outside of the tube 6, and below the collar The tubular rubber spring-v, ring 7", and act- 0 is a metallic covering, which serves as auating-cap c, in combination with the rod 0" finish, and also to holdthe pen. and tapering tubular point P, substantially I do not claim therod 1', nor tapering tube as shown and described. at the lower end ofthe case 0, for I am aware that such device has been in use for someGEORGE B. ADAMS. time; but, 7

Having thus described my invention, what Witnesses:

I do claim in a fountain-pen, and desire to se- HORACE HARRIS, cure byLetters Patent, is- HENRY J. PIERSON.

